NL1025828C2 - Fastening device for a patient stretcher. - Google Patents

Description

Fastening device for a patient stretcher

The invention relates to a fastening device for fastening an object to a patient stretcher.

5 Patient stretchers serve to carry patients in clinical working conditions. These can be both mobile and fixed and can be adapted to different requirements, for example adaptation to the different modalities for obtaining diagnostic images. To rationalize the production process, patient stretchers are designed to be as versatile as possible. This comprises on the one hand the versatility in view of the use in different clinical devices, and on the other hand the versatility in view of the requirements for the relevant patient-specific syndromes.

To increase the versatility, patient stretchers have mounting devices to which various associated objects can be attached, for example an infusion, a control device for a modality or a monitor device for monitoring physiological parameters of the patient

EP 0 752 237 B1 discloses a device for attaching surgical operation tools to a patient stretcher, which is based on rails attached to the patient stretcher. Operating tools and accessories can be interchangeably attached to the rails. However, this solution has the disadvantage that the mounting rails protrude with respect to the patient stretcher and thereby limit the accessibility of the patient stretcher and moreover cause a collision hazard. In addition, the rails on the basis of their edges and the fact that they protrude form a source of image errors in X-rays. Not in the last place, the fitting of accessories and operating tools to the rails is also cumbersome, because a stable connection is only achieved if the accessory is either placed on the rails and then screwed on, or if it is screwed from the end of the rails are pushed onto it and thereby enter into a tight, form-fitting connection. In particular, forming the connection automatically is only possible when the accessory is introduced in the direction in which the rails extend, but not transversely or perpendicularly thereto.

The object of the invention is to provide a device for attaching accessories to patient stretchers, which allows the uncomplicated application of accessories 1025828

2 I

allows accessories to be mounted at any location on the fastening device, and which I

at the same time a smallest possible collision hazard and a smallest possible source of I

image errors with X-rays I

The invention achieves this object by means of a device with the properties of the I

The present invention. I

A main idea of the invention is a fastening device for working

to provide for establishing an object on a patient stretcher, with the pa- I

patient stretcher a horizontally extending floor is provided. The floor I

ping is formed such that a tongue suitably conforming to the shape of the ver

The depth is adjusted in one of the directions in which the floor extends indefinitely

current input direction, for example transversely or perpendicularly thereto, without resistance in I

the floor can be entered. The tongue I

are hung in, whereby a force-locked and / or form-locked connection is automatically connected

is being formed. I

IS Because the floor inserting a suitable tongue in one of the longitudinal I

allows independent input direction, the tongue can be placed anywhere in I

enter the floor and does not have to be retracted from the end. I

No mechanical resistance is required when inserting the tongue without resistance

to be won and no rest position to be reached, so that the corresponding other- I

20 parts without exerting force and without vibrations or shocks are easy to insert I

which is particularly important for vibration sensitive or shock sensitive associated I

parts is advantageous. When hanging in the floor, a power is automatically generated

locks and / or form-locked connection formed, which facilitates handling and I

closing additional connections, for example screw connections, superfluous I

25 The simple use makes it possible to connect rapidly changing parts to I

to adapt to the circumstances and the I

patient, insofar as the associated components have their own corresponding confirmation I

tongue are equipped. I

In a favorable embodiment of the invention, the upper inner wall has I

30 of the floor an area in which it faces towards the bottom of the floor

ping to the top - the section of the floor widens to the top

vei. An area adapted to the course of the upper inner wall may be used in this area, I

also upwardly extending segment of a tongue. Therefore I

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I * 3 protects the accessory against unintentional pulling out of the floor and creates a more stable connection. Because of the course of the tongue and the upper inner wall of the floor upwards, it is only possible to pull the accessory out if it is lifted simultaneously, so that the tongue can leave the upwardly extending area of the floor. At the same time, the mounting of the tongue in such a shaped recess is easy to achieve and requires no special explanation for a user.

In a further favorable embodiment of the invention, the recess has a slot into which a cam provided for this purpose of a mounting tongue can be inserted.

The fixing tongue brought into engagement with the slot is therefore also protected against unintentional pulling out of the tongue or the accessory. To move the tab of the mounting tongue out of the slot, the accessory must be moved purposefully. At the same time, the cam of the mounting tongue can be brought into engagement with the slot without any special use of effort. Moreover, this provides the advantage that the engagement of the cam in the slot when noticing the accessory in the recess is noticeable and therefore a better control at makes it possible to hang the accessory

A further main idea of the invention is to provide a tongue for attaching an object to a patient stretcher, wherein the patient stretcher has a recess in the form described above. The shape of the tongue is adapted to the recess such that the tongue in a of the direction in which the floor extends independent input direction can be introduced into the floor without resistance. As soon as it is entered into the floor, the tongue can be hung where. a force-locked and / or form-locked connection will naturally be formed. An accessory equipped with such a tongue can be hung in the floor at any desired location on the floor and without any effort of use.

In a further favorable embodiment of the invention, the tongue has a lock. Due to the locking, it can be loaded with spring force after being suspended in the recess such that the force-locked and / or form-locked connection thereof to the recess is additionally strengthened. The locking makes additional security of the connection between the suspended accessory and the patient stretcher possible and is easy to handle, because in principle a spring mechanism, for example by a locking mechanism, can be designed such that it is 1025828 Η

can be operated with few operations. The lock can be adjusted depending on the setting

hanging accessory for only those accessories for which additional I

security seems necessary, while accessories that require less fuse without I

lock can be left. I

In a further favorable embodiment of the invention, the tongue has a variety

latch, which after hanging in and forming a form-locked connection with the I

floor can be put into operation, to prevent any movement of the tongue, causing the I

form-locked engagement with the floor could come loose. An I

such locking is also, for example, by means of a locking mechanism

10 times to accomplish and handle without much hassle. At the same time I

allows additional protection for accessories that require extra fuse I

need. I

Embodiments of the invention will now be described with reference to Figs

explained in detail These show: I

I

Fig. Profile of the tongue and of the recess of the fastening device. I

Fig2 A perspective view of a patient stretcher with attachment device

direction and suspended accessories. I

Figure 1 shows a mounting device according to the invention, consisting of an I

floor 11 and a tongue 9, shown in profile. The mounting device is on

third part of a patient stretcher 1, which stands on a foot 3 The patient stretcher 1 I

has a side covering 5, in which the fixing device is integrated. I

On the sides of the patient stretcher 1 the mounting device consists of I

The floor 11. The floor 11 has a sufficiently wide opening so that a tongue I

the shape of which is adapted to the floor 11, in one of the directions in which the I

floor 11 extends independently of input direction, for example transversely or perpendicularly

right to it, can be entered in floor 11. The opening is indicated by the I

bottom 16 and the opposite top 18. This is wide enough, I

30 such that a correspondingly shaped tongue 9 without effort and without I

resistance to overcome can be introduced. I

In an inner area of the floor 11, the upper inner side extends

wall thereof in the direction towards the bottom 14 of the first floor. In the I

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5

V

The exemplary embodiment shown in the drawing results in a widening of the floor 11 upwards. The tongue 9, which is arranged on a part of the accessories, for example an object 7, has a segment 10 which has a shape adapted to the course of the upper inner wall 12 of the recess 11; the tongue 9 is bent upwards in segment 10.

If the object 7 is suspended by the tongue 9 in the recess 11, the part of the tongue lying in the recess 11 is pushed upwards by the weight of the object 7 around the bottom 16 as a pivot point. 10 of the tongue 9 abut against the upwardly extending area of the upper inner wall 12 of the recess 11. By abutting the tongue 9 against the upper inner wall 12 as a result of the weight of the object 7, a frictional force between causes the adjacent surfaces and edges. This results in a force-locked connection between the tongue 9 and the recess 11. This force-locked connection prevents the tongue 9 and therefore the object 7 from being accidentally moved out of the mutual connection.

Moreover, the upward movement of the upper inner wall 12 and of the segment 10 of the tongue 9 forms a form-locked fuse against unintentional movement.

In order to remove the object 7, it cannot simply be pulled out, but must be lifted to such an extent that the upwardly curved segment 10 of the tongue 9 drops sufficiently far to pass the opening of the recess 11. In this respect, there is a form-locked connection with respect to the horizontal pulling out of the object 7 which, depending on the shape of the recess 11 and tongue 9, can be substantially more stable than the force-locked connection. At the same time, it is easy to achieve for a user, because for this purpose only the tongue 9 has to be introduced through the opening of the recess 11 therein.

As an additional security, the floor 11 has a slot 13, which is formed in the upper inner wall 12. A cam 15, which forms part of the tongue 9, can engage in the slot 13. The slot 13 and the cam 15 both have a rectangular cross-section, so that they can engage without engagement of force and without having to resist a resistance. are being brought. The engagement of the cam 15 in the slot 13 also forms a form-locked connection with further increased stability. To release this connection, the cam 15 of the tongue 9 must be raised by lifting it 1025828

object 7 can first be lowered so far that it is moved completely out of the slot 13

gene. Horizontal movement of the tongue 9 is only possible when the engagement of the I

cam IS in slot 13 is completely released. I

The form-locked connection of the cam 15 and the slot 13 is optimized I

5 because the edges thereof run at an oblique angle, and therefore not vertically and

not perpendicular to the movement when the tongue 9 is pulled out of the recess 11. There-

the engagement between the two is caused by the horizontal movement when exiting

deepening 11 pulling the tongue 9 reinforced; the cam 15 becomes, by its ascending side, I

on the image on the right, increasingly pushed into the slot 13. This guarantees an additional I

10 provides particularly secure stabilization of the compound. Moreover, the engagement of the I

cam IS noticeable in slot 13 for the user, which facilitates handling I

The tongue 9 can have a lock 17, which can be locked in the suspended state

activated. The lock may have a spring mechanism that is shown in the following

for the manner described, the engagement of the cam 15 in the slot 13 is utilized, around the connection

15 thing to stabilize. For this purpose the lock 17 loads the tongue 9 with a force I

that rejects from the floor 11 Thus the mutual engagement of the lugs 15 and I becomes

the slot 13 is reinforced. I

Among other things, the lock 17 can be wedge-shaped, around a clamp

effect of the tongue 9 in the opening of the recess 11. A third

20 is the same locking mechanism when a simple locking mechanism I is used

against the spring force and by releasing the spring mechanism

to activate it. It is easy to handle and can be attached to the object I when hanging

7 can be operated with a handle. I

Instead of a mechanism based on spring force, the lock 17 can be l

25 also consist of a rigid lock which blocks any movement through which the I

mutual engagement between cam 15 and slot 13 is eliminated. Because the each other r I

The kaid sides of the cam 15 and the slot 13 are not perpendicular to the movement at the I

pulling the tongue 9 out of the recess, the tongue 9 must be lifted when lifting the bottom

The first engagement can first be pushed deeper into the floor 11. The lock I

Thus, it is only necessary to counter the deeper insertion of the tongue 9 into the recess 11

to go. For this purpose it can only be shown schematically instead of the figure I shown in the figure

The spring mechanism consists of a tensioning lever, which can be locked by simple pulling

is detachable and detachable and is therefore equipped with a single handle. I

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Figure 2 shows a patient stretcher 1 with a mounting device in perspective according to the invention. The patient stretcher 1 also has a foot 3 and a side cover S. The fastening device is integrated into the side cover 5 on the sides of the patient stretcher 1.

This consists - as explained in Figure 1 above - of a recess 11 in the side cover 5, in which parts of the accessories or objects 7 can be hung with a tongue 9. As objects 7, an infusion and a switch panel are shown here as an example. The figure shows that the recess 11 extends along the longitudinal axis of the patient stretcher 1 and that objects 7 can be suspended in any position in the longitudinal direction.

The respective end of the recess at the head and foot ends of the patient stretcher 1 is not open to prevent the objects 7 from being pulled out unintentionally. Moreover, the frontal opening of the recess 11 can also be protected in a suitable manner to prevent contamination.

The fastening device according to the invention has the advantage that no protruding parts and additional edges are formed on the patient stretcher 1. This prevents on the one hand the risk of collision, on the other hand interference sources for x-ray images are prevented by the attachments on the patient stretcher 1. In addition, in the case that the patient stretcher 1 must be primarily suitable for use with X-ray arrangements, the outer and inner edges of the fastening device, i.e. the recess 11, may be rounded, since rounded edges are a smaller source of interference for X-rays then form angular edges. In addition, rounded edges present a further reduced collision or injury hazard.

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Claims (6)

A mounting device for attaching an object (7) to a patient stretcher (1), wherein on the sides of the patient stretcher (1) a recess (11) extending horizontally is provided, which is shaped such that a tongue (9) with a shape suitably adapted to the recess (11) in a direction in which the recess extends, independent input direction can be introduced without resistance into the recess (11) and into the recess ( 11) can be suspended, whereby a power-locked and / or form-locked connection is formed of itself. I 10 I Fixing device according to claim 1, wherein the upper inner wall (12) of the floor (11) has an area in which it extends upwards in the direction towards the bottom (14) of the floor (11), wherein Segment (10) of a tongue (9) adapted to the course of the upper inner wall (12) of this tongue can be fed into this IS. I Fastening device according to any one of the preceding claims, wherein the upper inner wall (12) of the floor has a slot (13) extending in the direction in which the floor I extends, with which an I adapted to the slot (13) The cam (15) of a tongue (9) can be brought into engagement without resistance. I 4. Tongue (9) for fixing »! of an object (7) on a patient stretcher (1) with a suitably designed recess (11), the shape of the tongue (9) being adapted to the recess (11) such that the tongue (9) can be entered in a direction independent of resistance in the direction in which the floor (11) extends and can be inserted into the floor (11) and can be suspended in the floor (11), in which case a power-locked and / or form-locked connection is formed. I 5. Tongue (9) as claimed in claim 4, which has a lock (17), whereby it can be loaded with spring force, whereby its force-tight and / or form-locked connection to the recess (11) is hardened. Jt \ '' X The toqg (9) according to claim 4, which has a lock (17), whereby a movement of the tongue (9) from its form-locked connection to the recess (11) can be blocked. 1025828